Nordic Pure 18x25x1M16-4 Merv 16 Air Filter 4-pack

Product Description

The NORDIC PURE 18x25x1M16-4 is a MERV 16 pleated air filter sold in a 4-pack, designed for residential and commercial HVAC systems where high-efficiency particulate capture is required. The filter uses an expanded pleated media surface to capture smoke, bacteria, mold spores, pet allergens, and ultrafine pollutants while maintaining low airflow resistance across the system. The actual dimensions are 17.5 inches by 24.5 inches by 0.75 inches, fitting nominal 18x25x1 filter slots. A reinforced 2-part frame resists bending and bowing over the service interval. Licensed HVAC technicians and facility maintenance staff install this filter in forced-air furnace and air conditioning systems requiring top-tier indoor air quality performance.

This filter is suited for residential homes with allergy or asthma concerns, commercial office environments, medical-adjacent facilities, and any application where fine particulate control is a priority. The MERV 16 rating places it at the upper tier of residential and light-commercial filtration, making it appropriate for environments with elevated air quality demands. Nordic Pure recommends replacing 1-inch filters every 30 to 90 days depending on environmental conditions and usage load.

Key Features

• MERV 16 rating captures smoke, bacteria, mold spores, pet allergens, and ultrafine pollutants
• Expanded pleated media provides increased filtration surface area for longer filter life
• Actual size 17.5 inches by 24.5 inches by 0.75 inches for precise fit in nominal 18x25x1 openings
• Reinforced 2-part frame resists bending, bowing, and deformation over the service interval
• Low airflow resistance design helps protect HVAC equipment and maintain system efficiency
• Manufactured in the USA; sold as a 4-pack for consistent replacement scheduling

Compatibility

Designed as an OEM-compatible replacement for residential and light-commercial forced-air furnace and air conditioning systems that accept a nominal 18x25x1 filter.

Installation Notes

Installation is performed by a licensed HVAC technician or qualified maintenance personnel. Power down or set the thermostat to OFF before opening the filter compartment and replacing the filter. Confirm airflow direction arrow on the filter frame aligns with the direction of airflow into the blower section before securing the panel. Nordic Pure recommends a 30-to-90-day replacement interval for 1-inch filters; higher-traffic or higher-contamination environments will trend toward the shorter end of that range.